{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "RNA", "DNA", "cell type", "cell line"], "input": "Kappa B (kappa B) enhancer binding proteins isolated from the nuclei of activated human T cells produce two distinct nucleoprotein complexes when incubated with the kappa B element from the interleukin-2 receptor-alpha ( IL-2R alpha ) gene ."}
{"protein": ["Kappa B (kappa B) enhancer binding proteins", "nucleoprotein complexes", "IL-2R alpha"], "RNA": [], "DNA": ["kappa B element", "interleukin-2 receptor-alpha ( IL-2R alpha ) gene"], "cell type": ["human T cells"], "cell line": []}